Strand twisting device



'Jan. 10, 1950 I A. CQNYSTROM El AL 7 ,8

STRAND TWISTING DEVICE Original Filed Nov. 4, 1947 ZSheetB-Sheet l N VE N TORS v ACNKSTROM nw. l/OLCKHA USEN MUPMM A T roe/v0 Jan. 10, 1950 A. c. NYSTROM Er AL 2,493,825

STRAND TWISTING DEVICE Original Filed Nov. 4; 1947 2 Sheets-Sheet 2 r"? i I FIG? INVENTORS A.C.NV$TROM m J. l/OLC HAUSEN BY M ATTORNEY Patentea Jan. 10, 1950 s'mmn TWISTING-DEVIG'E. 0.; Nist'fdiii, fiuthepfigrd w qa waiter:

5 Claims: (CI. 57-59) This 15- a division ef ec'pendifig apmieetiot of Axel c; Nystio'm arid Walter J; Vomkhau'sem Serial No: 783,874", filed- Nevember 4; 1947 now Patent Number 2311159738 I The invention herein relates to metemt sn pe flying a paratus, and more an apparatus for suppIyi'ngtape-fike eoies 1; sti fiihch in'g machinesfor mimmg switchboarderm'ss In the manufacture (it switlibibfd clbi'S; it

has been fbund desirable-"136 predate the t'tblis with fiat or oval Gress-seetion1 (-i'fi'titdhiseiis the? may be more readily disfi'sed the" eomgssm areas in' switehb'o'ardequipmehtn- The electrical conductefs' or (table of thit pe fire formed about a tape-like material meraeome monly known as pressb'oard whieh may'lie di'vhfi ous widths dependihg 'uifiom the size 'of: aktleto: be formedthereon, and more particularly: t6 the numben of electrical" conductors to be weuhd spirally thereab'ou-t;

An object of thezinventloh is to'ril otid ma? terial supplying apparatus whichw simple: in! structure, efii'eient in operation; neadtky adijustabble for various sizes of material sixppl iesf -athdz eisily acat'lm'b'lefor mounting the mt'eflali slipplies therein;

With thisand. other? objects: View; the-hi? vent-ion comprises mmaterial supplyingapfiai atue including aframe withvspace: ail-ignedi amntm edk members to removabiyreceive 2melement; 1

is to support a. supply of. materiak for rotation between. the members, as the material with= drawnfrom the supply. Latches-" ame earriedlpy the frame and disposedv adjacent the engis'etthe element for selective actuation thereof to fr'ee the element for removal in either: directionfrom the apnturedmemhrs I tenant threacfed members-- 2*5 we is. he

opposite sidesmeted. I-ficii x idfiar letbfis at-eat their peripheries receive ramming where they are held normally by the forces of springs 59 and 60. Aligning pins GI and 62 carried by the brackets 45 and 46 and entering apertures 63 and 64 in the handles 51 and 58 respectively, hold the latches 53 and 54 against rotation. The pins 6| and762 serve also tohold the latches 53 and 54 disengaged when the handles are rotated after they are moved outwardly free of the pins. Laterally extending rodsor fingers 6'! and 68 are carried by the retaining members 21 and 28 to lie adjacent the sides of a pad or supply of material 10.

The shaft 20 carries guide elements to guide the material 16 from the supply pad 10 into a narrow opening through the shaft wherein the material is guided in a path coincident with the axis of rotation of the fiyer unit or frame In during longitudinal advancement of the material. A sprocket 71 mounted on the. shaft isconnected to a sprocket 18 of a drive shaft 19 by a chain 80. The drive shaft 19 is supported in suitable bearings 8| and driven by a motor 82 through a sprocket and chain connection 83.

In the present embodiment of the invention, the motor 82is in a circuit 85 with a control switch 86. In actual structure, the necessary relays (not shown) are provided together with the conventional start switch 81 and stop switch 88. The switch 86 is normally closed and will be actuated into open position by a lever 90, pivotally supported at 9| on a bracket 92 which in turn supports a switch 86, when the pad 10 becomes empty.

During operation of the apparatus,- in it be assumed that a full pad of material 10 is mounted in the frame of the fiyer I0 and this material is threaded through the shaft 26 and directed to the means (not shown) I which causes its longitudinal advancement. While the material 16 is advanced longitudinally through the shaft '20, it is rotated about its longitudinal centerline by rotation of the flyer ID. This is brought aboutby the operation of the start switch 87 to energizethe motor 82to drive the shaft 19 which in turn will drive the flyer III. This operation continues until the pad 10 becomes empty or approximately empty at which time the lever 90 is rocked clockwise until the switch 86 is actu ated into open position, thus deenergizing the motor 82. The stop switch 88 is then actuated. The operator then actuates the closest latch 33 or 34 to free the element 3| for removal whereby a core, which usually constitutes the central portion of the pad 10, may be removed and a new pad of material 10 installed in theflyer. The new pad of material is installed by holding the pad in a position between the retaining elements 28 with its core aligned with the element 3| after which the element may be forced through the core of the pad until it comes to a stop against the latch 33 or 34 which has not beenactuated at this time. In actual practice, the element 3| may not be removed en tirely fromthe adjacent retaining element 21 or 28 and in this manner the latch which has been actuated to free the element 3| will be held in its open position resting against the periphery of the element. I After the padhas beenlocatedcentrally of the element 3| the operator need only force the element 3| inwardly against the latch 33 or 34 which has remained closed and the remaining latch which has been actuated will automatically move into place..by the force of its spring 39 "or 40;

If it is desirable to install a pad of different width, this may be accomplished by moving the latch 53 outwardly against the force of its spring :59'through the aid of the handle 51. In this instance the aligning pin 6| may function as a hold meansto hold'the latch 53 in its outer position faf,ter the handle 51 has been moved free of thejpin and rotated a given distance to rest on the outer end of the pin. When this has been "'faccomplished, the retaining element 2'! may be Q TOtated in either direction depending upon whether a wider or narrower pad is to be in- A the frame to retain thesupply of material at. a

stalled. The grooves 49 are conveniently positioned whereby one of them may be brought into registration with thelatch 53 at the end of any of the adjustments of the retaining element 21. At :thistime, the latch 53 will be forced into the selected groove 49 by the force of its spring 59 merely by rocking the latch until the pin registers with the aperture 63 in the handle 51. In a similar manner the retaining element 28 may be adjusted. These adjustments are only made when it is desirable to modify the apparatus for forming. a different size cable. If the apparatus is set up to form a cable of a given size, pads 16 of the same width will be successively mounted in the flyer and the leading end of a new pad will be connected to, the following end of a pre- Viously empty pad whereby the continuous formation of a cable may result.

' It is to be understood that the above-described arrangements are simply illustrative of the application of the principles of the invention. Numerous other arrangements may be readily devised by those skilled in the art which will embody the principles of the invention and fall within thespirit and scope thereof.

-- Whatis claimed is;

1. A material supplying apparatus comprising tured members as the material is withdrawn from the supply, and latches carried by the frame and disposed adjacent the endsof the element for selective actuation to free the element for removal in either direction from the apertured members.

v 2. A material supplying apparatus comprising a frame, spaced aligned apertured members carr ied' by the frame, an element removably disposed in the apertured members to support a supply of material for rotation beteen the apertured members as the material is withdrawn from the supply, latches carried by the frame and disposed adjacent the. ends of the element for selective actuation to free the element for re moval in either direction. from the apertured members, and means whereby the said apertured members may be moved relative to each other and given position relative to the frame. 7

w 3. A material supplying apparatus for sup-. porting apad .of tape-like material and rotating the material-aboutan axiscoincident with the longitudinal centerline of thematerial pulledfrom the pad,.the apparatus comprising a rotat- 5 able frame having spaced members, apertured retaining elements carried by the frame members, a spindle removably disposed in the apertured retaining elements to rotatably support the pad of material, and spring pressed latches normally engaging their respective ends of the spindle to hold the spindle in the apertured elements and selectively actuable to free the spindle for removal from either side of the apertured elements.

4. A material supplying apparatus for supporting a pad of tape-like material and rotating the material about an axis coincident with the longitudinal centerline of the material pulled from the pad, the apparatus comprising a rotatable frame having spaced members, aligned internally threaded members carried by the frame members, externally threaded apertured retaining elements mounted in their respective internally threaded members for adjustment of the elements toward and away from each other by relative rotation of the elements and members to singly locate pads of various sizes centrally of the said path, a spindle removably disposed in the apertures of the retaining element to support the pad, and means to removably secure the spindle in place.

5. A material supplying apparatus for supporting a pad 01 tape-like material and rotating:

the material about an axis coincident with the longitudinal centerline of the material pulled from the pad, the apparatus comprising a rotatable frame having spaced members, aligned internally threaded members carried by the frame elements in their adjusted positions, a spindle removably disposed in the apertures of the retaining element to support the'pad, and means to removably secure the spindle in place.

AXEL c. NYSTROM. WALTER J. VOLCKHAUSEN.

No references cited. 

